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Finding the Third Proportional to 518,384 and 1,136,412.50

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Solution

The third proportional to 518,384 and 1,136,412.50 is: 2,491,267.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,384 : 1,136,412.50 = 1,136,412.50 : x
  2. Step 2: Convert to fraction form
    518,384/1,136,412.50 = 1,136,412.50/x
  3. Step 3: Cross multiply
    518,384x = 1,136,412.50 × 1,136,412.50
  4. Step 4: Simplify right side
    518,384x = 1,291,433,370,156.25
  5. Step 5: Solve for x
    x = 1,291,433,370,156.25/518,384
  6. Step 6: Final answer
    x = 2,491,267.81

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.